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Finding the Fourth Proportional to 3,094.25, 4,640.94 and 903.20

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Solution

The fourth proportional to 3,094.25, 4,640.94 and 903.20 is: 1,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,094.25 : 4,640.94 = 903.20 : x
  2. Step 2: Convert to fraction form
    3,094.25/4,640.94 = 903.20/x
  3. Step 3: Cross multiply
    3,094.25x = 4,640.94 × 903.20
  4. Step 4: Simplify right side
    3,094.25x = 4,191,673.80
  5. Step 5: Solve for x
    x = 4,191,673.80/3,094.25
  6. Step 6: Final answer
    x = 1,354.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.